Originally Posted By: addyguy
Truthfully, with regular top-off, you can go further than 4k, so going a full 3 months, like you want, isn't a big deal.
'Back in the day' I think Ford called for OC's every 6k with 10W-30 or 10W-40.
Ironically, the owners manual for this car recommends oil change at 7500 miles and filter every other change using SE grade oils. Also says 10w-30 good for up to 90 deg F with 10w-40 for above that. 5w-30 not recommended for extended driving at freeway speeds or for use above 32 deg F.
My target is 5k to 3 months while minimizing consumption. Current fill would take at least another qt to reach 5k, making it 3 qts added.
Now @ 46.67k or 3.17k on oil+filter